UnFairchild 670M II
UnFairchild 670M II
Fit and constraints
Intended use
Constraints
To use it
Questions
Which connections, drivers, operating systems, and sample rates are supported by this exact revision?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
What cables, mounts, power supplies, or licenses are included?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Is the current retailer listing new stock, demo stock, open box, or special order?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Description
The UnFairchild 670M II from Undertone Audio is a tube mastering compressor based on the classic Fairchild circuit, featuring a signal path with two transformers and four paralleled vari-mu tubes. It offers six preset and four variable time constants, mid-side processing, sidechain capability, adjustable left-right balance, DC threshold control, and selectable feedback versus feedforward operation. The design incorporates circuitry modifications for improved tube longevity and reliability.
Seller notes: UNDERTONE AUDIO UnFairchild 670M II. UnFAIRCHILD MODEL 670M II.